| TIAN Bin,LIU Bao-hui,YUE Wen,WANG Cheng-biao.Effects of W and Mo Ion Implantations on Surface Structures and Properties of Ion-plated Titanium Nitride Coatings[J],46(6):174-179 |
| Effects of W and Mo Ion Implantations on Surface Structures and Properties of Ion-plated Titanium Nitride Coatings |
| Received:January 15, 2017 Revised:June 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.06.027 |
| KeyWord:ion implantations titanium nitride friction wear tungsten ions molybdenum ions |
| Author | Institution |
| TIAN Bin |
School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing , China |
| LIU Bao-hui |
School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing , China |
| YUE Wen |
School of Engineering and Technology, China University of Geosciences Beijing, Beijing , China |
| WANG Cheng-biao |
School of Engineering and Technology, China University of Geosciences Beijing, Beijing , China |
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| Abstract: |
| The work aims to further improve tribological properties of TiN coatings. W and Mo ion implantations at same doses were performed on ion-plated TiN coatings using metal vapor vacuum arc (MEVVA) source. Ion implantation depth, morphology, surface roughness, phase structure, and nano-hardness at different implantation depth of TiN coatings were analyzed with scanning auger microprobe (SAM), three-dimensional optical profilometer, X-ray diffractometer (XRD) and nano indentor, respectively. Tribological peroperties of TiN coatings were investigated on a ball-on-disk sliding tribometer. Also, wear appearance was analyzed with scanning electron microscopy (SEM) and three-dimensional optical profilometer. Content of W ions in TiN coatings was obviously higher than that of Mo ions after the same dose implantations. W and Mo ion implantations had less effect on surface morphology and hardness of TiN coatings. The XRD results showed that Ti2N phases appeared on TiN coatings after W and Mo ion implantations. The friction coefficient and wear rate of TiN coatings decreased to different extent after W and Mo ion implantations. Tribological properties of the ion-plated TiN coatings cab be improved by both W and Mo implantations. However, the Mo ion implantation is more conducive to reduction of friction coefficient while the W ion implantation is more conducive to redcution of wear rate. |
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